Lattice dynamics of KNi2Se2

Article

关键词: SUPERCONDUCTIVITY;    PHONONS;   

DOI  :  10.1103/PhysRevB.87.144305

来源: SCIE

【 摘 要 】

We report first-principles calculations of the lattice dynamics of KNi2Se2 together with Raman scattering study. We have observed three out of four Raman-active modes predicted by factor group analysis. Calculated phonon frequencies are in good agreement with experimental findings. Contrary to its iron counterpart (K-x Fe2-y Se-2), K0.95Ni1.86Se2 does not show vacancy ordering. DOI: 10.1103/PhysRevB.87.144305

【 授权许可】

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